yeah I suspected the bearing material, but thats alot of material in the photograph dude.
I suppose you could inpsect your turbos since they are part of the same oiling system but I think MAZDAROTARYPOWER is correct. |
Looks like what I found on an engine that someone had screwed up the thrust bearing on. I bought an engine from a junkyard (86 na) and stuck it my car. Ran great for a little while, then started knocking really bad at high rpm's. It was like someone was pounding on the engine with a sledgehammer. Shut it off and turned the engine over by hand - as I did I discovered the eccentric was free to move up and down about 1/8"!! Upon disassembly I found a crushed thrust bearing which damaged the front main bearing. It ran long enough to remove almost the entire bearing shell! And, it was still running when I tore it down...
Jason |
With the bearing or bearings being bad would that affect my core alot? If it was the bearings of the engine I would have to replace the eccentric shaft and stationary gear or just the stationary gear bearing I would still be better off rebuilding or going with a reman?
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you don't know til you tear it down and inspect it.
how did it run before this point? if everything seemed fine you probably have a usable core. |
Was running good and then I couldn't get it too start one morning and so I decided to tear it down for my single turbo conversion.
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https://www.nopistons.com/forums/pub...>/blackeye.gif I was a navy mechanic for 4 years and worked on helos for a while in the nat guard...and one of the first things I learned about metal flakes...silver is normal ware bronze copper color is not good.. lots of metal parts are steel or what not on the outside but have a copper or a light metal on the inside...think of a peanut m&m. thats one way auto shops get people hard is by pulling a pan and showing someone flakes that are from normal ware and saying that its not good....but in your case something is not good.
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Definately tear down and rebuild the entire engine. You don't want that **** running through your new turbo that is spinning 100,000rpm.
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you'll have some metal shavings, but BRASS colored metal shavings are a bearing...and that's bad. https://www.nopistons.com/forums/pub...IR#>/blink.png
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Sounds like oil starvation to me. You'll probably find a rotor bearing that's toasted and you'll be lucky if the E-shaft survived. Did you find anything wrong with the oil metering system?
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Correct me if I am wrong but the oil metering pump only provides oil to the rotor housings and rotor faces not to any bearing surfaces. So I don't see how that would be a problem. But the oil metering pump is fine. I cut the oil filter in half and found no metal filings looks like nothing made it past the strainer. I have decided to go ahead and tear it down. I emailed Bruce Turrentine and he recommend to tear it down because it should be cheaper and better to fix it my self. So I will know more on monday or tuesday when I get a socket that will fit the flywheel nut.
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